A notable 86 percent of Facebookers second-screen at the moment, but Twitter scores the best figures for behaviors relating specifically to TV shows: One in five Twitter users shared their opinion of a TV show the last time they second-screened, compared with 12 percent of Facebookers.

What’s more, Twitter users are 66 percent more likely than average to interact with the online content of a TV show, whereas Facebookers are just 6 percent more likely to do this.

Readers: How do your second-screen actions compare with GWI’s findings?